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我厂生产、生活供水水源有机井4眼,其中大口井两眼。安装离心泵6台,均采用H42X-2-5型升降式水下式底阀。由于大口井靠近焦炭和石灰石堆放场地,粉尘污染严重,使井水中焦炭和石灰石粉尘的悬浮物较多,导致水下式底阀腐蚀严重、关闭失灵。造成水泵启动困难,影响安全生产。另在检修底阀时还需要使用起重设备,检修极为不便。
I plant production, living water supply wells 4 organic wells, of which two large mouth well. Install centrifugal pump 6, are used H42X-2-5 type lifting type underwater foot valve. Due to the large coal mine near the coke and limestone storage sites, dust pollution is serious, so that the well water coke and limestone dust suspended solids lead to serious corrosion of underwater foot valve, shut down failure. Cause the pump start difficult, affecting safety in production. The other end valve also need to use lifting equipment, maintenance is extremely inconvenient.